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Generation III Internal Engine 1997-2006 LS1 | LS6
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Is there a position I can turn the crank to shut all the intake valves?

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Old 05-27-2009, 02:11 AM
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Default Is there a position I can turn the crank to shut all the intake valves?
My car is a turbo car & I'm trying to chase down a phantom boost leak. I have pressurised all the charge pipes and intercooler and they are good (no leaks) but when under boost running I still have a leak so I wanna pressurize the intake and see if I have an intake manifold leak. The car also has a 224 cam.
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Old 05-27-2009, 06:06 AM
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no.

remove valve covers and loosen all the intake rockers
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Old 05-27-2009, 06:14 AM
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nope, loosen the rocker arms.
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Old 05-28-2009, 03:20 PM
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Originally Posted by Fireball
no.

remove valve covers and loosen all the intake rockers
Originally Posted by willyfastz
nope, loosen the rocker arms.
Thanks thats what I needed to know.
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